Green Day returned to the stage over the weekend, performing its first concert since frontman Billie Joe Armstrong's stint in rehab.
According to Rolling Stone, the band played a sold-out, 2-hour show on Sunday at the Fox Theater in Pomona, Calif. The concert was reportedly the first of four warm-up shows that the band will play before kick-starting its arena tour in late March.
Green Day had previously postponed the start of its 2013 world tour after Armstrong's "meltdown" onstage during a concert at Las Vegas' iHeartRadio Music Festival in September.








